Dispensing container



May I, 1923.

W- vJ. COVELL DISPENSING CONTAINER Filed Feb. 1, 1922 Patented May 1, 1923.

" lit} WILLIAM J. COVELL, OF SAN FRANCISCO, CALIFORNIA.

DISPENSING CONTAINER.

Application filed February 1, 1922. Serial No. 533,391.

To all whom it may concern:

Be it known that I, l/ViLLrAM J. CovELL,

a citizen of the United States, residing in thecity and county of San Francisco and '5 State of California, have invented a new and useful Improvement in a Dispensing Container, of which the following is a specification.

My invention relates to dispensing containers adapted for use either as a dosage bottle or,as a syringe operating upon the variable pressure principle.

The present invention is an improvement upon my copending application for a dosage bottle, reference to which is hereby made and the primary object is to provide a simplified construction adapted to reduce the cost of manufacture and to render the device less liable to breakage. Further objects are to provide for the discharge of charges of greater amounts, and to provide improved means for preventing leakage.

This invention consists of the novel con struction and arrangement of parts disclosed in the drawings forming a part of the present specification wherein like characters of reference are used to designate simi-- lar parts throughout said specification and drawings, and in which:

Fig. 1 is a vertical section of my improved dispensing container.

Fig. 2 is a side elevation of my modified form of the container adapted primarily for use as a syringe.

35 Fig. 3 is a view partly in section taken at right angles to Fig. 1.

Referring to the drawings the device is seen to consist of a container 1 having a neck portion 2 and a dispensing tip 3 having a dispensing aperture 4 therethrough. A tubular member 6 having a flange 7 upon the upper edge thereofi is removably secured able material whereby said tip may be opened to permit a portion of a liquid contained within the container to be dispensed. The container may be provided with supporting lugs 17 whereby the container may be stood upon end after the fashion of an 6 ordinary bottle, as shown in Figs. 1 and 3,

or the lugs may be omitted and the bottom given a rounded shape to adapt it for use primarily as a syringe.

The device is operated by first forming o5 partial vacuum within the container when the piston is receded from a normal position at the foremost end of the member 6 as shown in Fig. 1, the cap 16 being removed to permit air to be drawn into the container through the dispensing aperture torestore the pressure therein to normal. When the piston is again advanced within the member 6 the pressure within the container is increased and a portion of the contents thereof forced out through the dispensing aper ture. The amount of liquid dispensed is decreased dependent upon the distance moved by the piston at each operation, calibrations 18 being provided. upon thestem to 80. indicate the amount of liquid that'will be dispensed when the stem is receded the inclicated distance. 1

In my copending application herein above mentioned, the stem 12 extends beyond both ends of the member 6, theinwardly extending end being'arranged to normally engage the dispensing aperture to close the same when the piston is in the normal position. In the present invention I have eliminated the forwardly extending portion of the stem, so that the piston stem is operated entirely within the tubular member. The dispensing tip is closed from the outside by means of a removable cap which insuresthat no leakage will occur even should the piston be slightly displaced through inadvertence or accident.

The construction of the piston stem is thus materially simplified and the danger of breakage materially reduced. The member 6 may now be made of. any desiredlength as no allowance need be made in this construction for the upward movement within the container of a closing element. The amount that may be dispensed at each operation may thus be varied through a wider range.

It will thus be seen-that I have provided an improved device afi'ording greater sim-' plicity and a Wider utility.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. A dispensing container comprising a container having a neck portion and a dispensing tip formed thereon; a tubular member mounted within the neck and extending into said container, said member being open at both ends and having its inner end open Within the container; a piston slidably mounted, within the tubular member; a stem secured upon said piston and extending outwardly from the tubular member through the neck of the container whereby said piston may be reciprocated Within the tubular member, a receding movement creating a partial vacuum within the container whereby air is drawn into the container through the dispensing tip to restore normal pressure, and a subsequent forward movement 01"" the piston causing an increase in pressure whereby liquid may be forced from the con tainer through said dispensing tip.

2; A dispensing container comprising a container having a neck portion and a dis pensing tip formed thereon; a tubular member mounted within the neck and extending into said container, said member being open at both ends and having its inner 'end open within the container; a piston slidably mounted within the tubular member through the neck of the container whereby said piston may be reciproeated within the tubular member, a receding movement creating a partial vacuum within the container where by air is drawn into the container through the dispensing tip to restore normal pressure, and a subsequent forward movement of the piston causing an increase in pressure whereby liquid may be torced from the container through said dispensing tip and a cap adapted to be fitted over the outer end. of the dispensing tip to normally prevent leakage or"- liquid from the container; i

3. A dispensing container comprising a container having a neck portion and a dispensing tip formed thereon; a tubular member mounted within the neck and extending into saidcontainer, said member being open at both ends and having its inner end open within the container; piston slidably mounted within the tubular member; a stem secured upon said piston and extending outwardly from the tubular member through the neck ot' the Mmtainer, whereby said piston may be rcciprocated within the tubular member, a receding movement creating a the amount of liquid that will be dispensed by movement of the piston from an indicated receded position to an innermost position within the tubular member.

at. A dispensing container comprising a container having a neck portion and a dispensing tip formed thereon; a tubular member mounted within the neck and extending into said container, said member being open at both ends and having its inner end open within the container; a, piston slidably mounted within the tubular member; a stem secured upon said piston and extending outwardly from the tubular member through the neck of the container, whereby said pie ton may be reciprocated within the tubular member, a receding movement creating a partial vacuum within the container whereby air is drawn into the container through the dispensing tip to restore normal pres} sure and a subsequent forward movement of the piston causing an increase in the pressure whereby liquid; may be forced from the container through said dispensing tip; calibrations formed upon the stem to indicate the amount of liquid that will be dispensed by movement of the piston from an indicated receded position to an innermost position within the tubularmember; and a cap removably' fitted over the outer end of the dispensing tip to prevent leakage therefrom.

5. A, dispensing container comprising a container having a neck portion and a dispensing tip formed thereon; a tubular member mounted within the neck and extending into said container, said member being open both ends and h'avingits inner end open within the container; a piston slidably mounted vithin the tubular member; a stem secured upon said piston and extending outwardly from the tubular inembenthrough the neck of the container, whereby saidpis; ton may be reciprocated within the tubular member, a receding movement creating a partial vacuum within the container whereby air is drawn into the container through the dispensing tip to 'rest-or e non mal pressure, and a subsequent forward movement of the piston causing an increase inthe pressure w iereby liquid may be forced from the container through saiddispensing tip; calibrations formed upon the ste n to indicate the amount of liquid that will be dispensed. by movement of the piston from an indicated receded position to an innermost position within the tubular member; a cap removably fitted over the outer end oi the dispensing tip to prevent leakage therefrom; and lugs formed adjacent the dispensing tip to protect said tip and to permit said container to he stood; upon end.

In witness whereof I hereunto set my nature. A

YVILLIAM J. UOVELL. 

